GIS Dictionary

[ESRI software] In ArcGIS, an XML file that contains an acknowledgement message.

[ESRI software] In ArcGIS, a message from a replica to its relative acknowledging the data changes received by the sending

[programming] Acronym for access control list. A list of accounts or users used to designate restricted and unrestricted services and

[remote sensing] A remote-sensing tool with an oscillating mirror that moves back and forth across a satellite’s direction of travel,

[ESRI software] The data frame currently being worked onfor example, the data frame to which layers are being added. The

[ESRI software] In Survey Analyst for field measurements, the focus of the analyses applied. In an active network, users may

[remote sensing] A remote-sensing system, such as radar, that produces electromagnetic radiation and measures its reflection back from a surface.

[ESRI software] In ArcView 3.x, the theme in a view document to which button and tool actions or corresponding menu

[non-ESRI software] A type of ArcIMS Application Server Connector that is a Component Object Model (COM) dynamic link library (DLL)

[photogrammetry] A measure, using a microdensitometer or other instrument, of how well a photographic system shows sharp edges between contiguous

[programming] An extension to a software program that performs a custom task. ESRI provides various developer add-ins as part of